Electrical test equipment

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John *.?-!.* cub owner
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Joined: Sun Feb 02, 2003 2:09 pm
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Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
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Re: Electrical test equipment

Postby John *.?-!.* cub owner » Tue Dec 02, 2008 9:30 am

RockClimb wrote:John,
I thought the point side of the coil was low voltage? Or is it coming from the field collapse on the coil?
It is basically a low voltage circuit, but the combination of condenser and coil form a resonant circuit, and when the points open and the field in the coil windings collapse there is a high voltage spike there. To test it, just put your hand across the side terminal of the distributor and ground while the engine is running. A magneto and distributor will both bite at that point.
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